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Adithi Keshava from National Center For Excellence , Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Aditya N K from Bharathiya Vidya Bhavan, Calicut
Class : Class 4
what is pollination

Ans 2:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 5
My Answer is DPollination is when pollen of a plant travels from one plant to another by something (i.e.Insect and water). Pollens are used to grow seeds in the plant

Ans 3:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5

Ans 4:

Sashrik S Bhalerao from NHP school, Airoli
Class : Class 1
D.

Ans 5:

Jasnoor from DAV public school, Ludhiana
Class : Class 4
A

Ans 6:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 6

Ans 7:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 6

Ans 8:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
I go with Jasnoor's option. A

Ans 9:

Advaita sinha from NPSI, Singapore
Class : Class 5

Ans 10: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

ADWIKA from DAV, FARIDABAD
Class : Class 7

Ans 2:

sjash from tagore international, New Delhi
Class : Class 7
but the ques is wrong........if a is sitting between g and c, how is c second to the right of a ???????

Ans 3:

Gouse Jani from Aditya talent school, Kakinada
Class : Class 7
DB

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is A.

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Class : Class 7
option c is correct

Ans 2:

Manu Dagur from Rukmani Birla Modern High School, Jaipur, JAIPUR
Class : Class 10
D as it is mentioned that the particle is travelling at a constant speed

Ans 3:

Atharva Shrikhande from euro school, Pune
Class : Class 7
both options "C" and "D" are correct in my opinion cause as the car is moving at a constant speed there is no acceleration and as the car is being ridden on a straight road direction of movement also does not change, Hence proving that both option "C" and "D" are correct. I hope my answer was helpful. A very Happy New Year to all

Ans 4:

Venya Vikas from Chirec International , Hyderabad
Class : Class 7
Both option C and option D are correct as since it is moving in constant speed, it's acceleration will be zero and the direction will not change as it was not mentioned and the particle is travelling on a straight road

Ans 5:

govindkrishnan p from KENDRIYA VIDYLAYA PAYYANUR, PAYYANUR
Class : Class 7
Both 'C' and 'D' are correct

Ans 6:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 9
not c i think

Ans 7:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 6
Both C and D are correct

Ans 8:

RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Class : Class 7
option c is correct as acceleration means change of speed

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
The correct is C

Ans 2:

Anshuman D from MVM, Hyderabad
Class : Class 9
I actually don't get the logic behind it

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

Ans 4:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
Here the properties of lines and angles will be applied.Then the laws of reflection

Ans 5:

Anshuman D from MVM, Hyderabad
Class : Class 9
I am not able to understand it

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
0hi hi hih h hi hi hi hii

Ans 2:

siddarth from DPS Ecity, Bengaluru
Class : Class 8
ans= c

Ans 3:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
The correct answer is D.

Ans 4:

Jai kumar Bohara from Dps, Udaipur
Class : Class 9
yes ans c

Ans 5:

Md.ZEESHAN ali from St. Agness branch school, Kharagpur
Class : Class 4
yes according to me also the answer is c but in nso practice papers it is written as d

Ans 6:

Tanush Rao from Delhi Public School Vasant Kunj, Delhi
Class : Class 8

Ans 7:

Sanjay Kumar from Vellammal Vidyashram, Chennai
Class : Class 5
Ans c

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priyanshi gupta from opg world school , delhi
Subject :NSO    Class : Class 4

Ans 1:

Pankaj Rajput from RBK GLOBAL SCHOOL, THANE
Class : Class 4

Ans 2:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
the answer is d

Ans 3:

Arnav kaul from Chirec, Hyderabad
Class : Class 5

Ans 4:

PARTH PANCHAL from NEW HORIZON SCHOLARS SCHOOL, THANE
Class : Class 5
yes you are right

Ans 5:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 4
D is correct

Ans 6:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 4
I think B and D is correct.

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SHAURYA RAJ from LITERA VALLEY SCHOOL, PATNA
Subject :NSO    Class : Class 3

Ans 1:

Smita Roy from Nava Nalanda Santiniketan Shakha, Bolpur
Class : Class 3
C

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ADVAITH KRISHNAN from SHISHUKUNJ INTERNATIONAL SCHOOL, INDORE
Subject :NSO    Class : Class 7

Which of the following statements are correct?
I. The tangy taste of cola drinks is due to carbonic acid which is an organic acid.
II. Inorganic acids are prepared artificially in the industries and are extremely corrosive.
III. Hydrochloric acid reacts with metals to varying degrees therefore, it is stored in glass bottles.
IV. Organic acids are weak acids and are used as food supplements.

A I, II and III only
B I and IV only
C II and IV only
D All of these


Why is carbonic acid inorganic even though all organic acids have carbon in their formulae and H2CO3 is the formula of carbonic acid?

Ans 1:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
hcl reacts with metals too

Ans 2:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 8
Hcl reacts with metals also

Ans 3:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 6
Hydrocloric acid is very corrosive and reacts with metals . So HCL is stored in glass bottles because it dont causes damage to it . ..........SO 3 statement should be true and their explanation is wrong .

Ans 4:

Aarnavi Mann from Scholars rosary Sr. Sec. School, Rohtak
Class : Class 8
Inorganic acids such as minerals acid like HCL , H2SO4 etc . Are. Not always made in factories . HCL is produced in our stomach.

Ans 5:

Ankush Ghosh from DPS, Doha
Class : Class 8
Hcl doesnt react with glass. The explanation is wrong

Ans 6:

Rudraksh Mittal from JAYPEE PUBLIC SCHOOL, NOIDA, NOIDA
Class : Class 7
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 7:

Tejas Agarwal from Amity International School , Noida
Class : Class 7
Q is wrong since option 1 is false, rest all are true

Ans 8:

Akshara from NPS, Bengaluru
Class : Class 8
I completely agree... The HCl reacts with metals , which is major reason of why HCl is stored in glass bottles..

Ans 9:

Ahan Biswas from National Public School, Bangalore
Class : Class 7
Hydrochloric acid reacts with metals and corrodes them and is therefore stored in glass bottles... This question is wrong and so is the explanation.

Ans 10:

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi
Class : Class 8
Hcl doesen't react with metals......Sulphuric acid does

Ans 11:

dhairya mittal from vidyashram international school jodhpur, Jodhpur
Class : Class 5
You all are correct

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Anhiti Mandal from Shri Ram School, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 8
i gave the correct answer but in the result they are showing that it is wrong.it is the same case with some other questions too.Please make a note that you correct it,thank you.

Ans 2:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 8

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A Ramakrishna Rao from D A V Public School. Unit 8. Bhubaneswar , Bhubaneswar
Subject :NSO    Class : Class 5

Ans 1:

Rounak J from Silver Oaks School , Hyderabad
Class : Class 5
D

Ans 2:

SARVESH RAMESH from DPS MIS, QATAR
Class : Class 5

Ans 3:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Stapler ( option D ) is the odd one out as it is a third class lever i.e. effort is between the load and fulcrum .

Ans 4:

Shruthi from VIBGYOR, Mumbai
Class : Class 6
What is type of Option A?

Ans 5:

Rohan David from Oakridge International school, Hyderabad
Class : Class 7
The answer is D because the stapler is the odd one out

Ans 6:

Kavin Karthick M from DPS bangalore east, Bengaluru
Class : Class 6
option D is correct because stapler is 3rd class lever

Ans 7:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 8:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
yes because the stapler is a third class lever

Ans 9:

D Murari from Indian School of Excellence, Bangalore
Class : Class 6

Ans 10:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5

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